| San Marcos to Hamtramck (Michigan) | 1,954.94 mi (3,146.17 km) |
| San Marcos to Hanahan (South Carolina) | 2,141.67 mi (3,446.69 km) |
| San Marcos to Hanford (California) | 261.69 mi (421.14 km) |
| San Marcos to Hannibal (Missouri) | 1,497.47 mi (2,409.95 km) |
| San Marcos to Hanover (Pennsylvania) | 2,260.53 mi (3,637.97 km) |
| San Marcos to Hanover Park (Illinois) | 1,693.37 mi (2,725.21 km) |
| San Marcos to Happy Valley (Oregon) | 895.95 mi (1,441.90 km) |
| San Marcos to Harker Heights (Texas) | 1,150.41 mi (1,851.41 km) |
| San Marcos to Harlingen (Texas) | 1,261.33 mi (2,029.92 km) |
| San Marcos to Harper Woods (Michigan) | 1,961.74 mi (3,157.12 km) |
| San Marcos to Harrisburg (North Carolina) | 2,080.37 mi (3,348.04 km) |
| San Marcos to Harrisburg (Pennsylvania) | 2,265.36 mi (3,645.74 km) |
| San Marcos to Harrison (Arkansas) | 1,379.71 mi (2,220.42 km) |
| San Marcos to Harrison (New Jersey) | 2,408.28 mi (3,875.74 km) |
| San Marcos to Harrison (New York) | 2,430.46 mi (3,911.44 km) |
